let path = require("path");
const webpack = require("webpack");
const ThemeColorReplacer = require("webpack-theme-color-replacer");
const { getThemeColors, modifyVars } = require("./src/utils/themeUtil");
const { resolveCss } = require("./src/utils/theme-color-replacer-extend");
const CompressionWebpackPlugin = require("compression-webpack-plugin");

const productionGzipExtensions = ["js", "css"];
const isProd = process.env.NODE_ENV === "production";

const assetsCDN = {
  // webpack build externals
  // externals: {
  //   vue: "Vue",
  //   "vue-router": "VueRouter",
  //   vuex: "Vuex",
  //   axios: "axios",
  //   nprogress: "NProgress",
  //   clipboard: "ClipboardJS",
  //   "@antv/data-set": "DataSet",
  //   "js-cookie": "Cookies"
  // },
  css: [],
  js: [
    // "//cdn.jsdelivr.net/npm/vue@2.6.11/dist/vue.min.js",
    // "//cdn.jsdelivr.net/npm/vue-router@3.3.4/dist/vue-router.min.js",
    // "//cdn.jsdelivr.net/npm/vuex@3.4.0/dist/vuex.min.js",
    // "//cdn.jsdelivr.net/npm/axios@0.19.2/dist/axios.min.js",
    // "//cdn.jsdelivr.net/npm/nprogress@0.2.0/nprogress.min.js",
    // "//cdn.jsdelivr.net/npm/clipboard@2.0.6/dist/clipboard.min.js",
    // "//cdn.jsdelivr.net/npm/@antv/data-set@0.11.4/build/data-set.min.js",
    // "//cdn.jsdelivr.net/npm/js-cookie@2.2.1/src/js.cookie.min.js"
  ]
};

module.exports = {
  devServer: {
    proxy: {
      "/": {
        //此处要与 /services/api.js 中的 API_PROXY_PREFIX 值保持一致
        //target: process.env.VUE_APP_API_BASE_URL,
        // target:'http://192.168.10.143:10001',
        //target:'http://127.0.0.1:10001',  //测试地址
        //target:'http://192.168.10.116:10001', //本地地址
        target:'http://192.168.0.150:10001',
        changeOrigin: true
        // pathRewrite: {
        //   '^/api': '/'
        // }
      }
    }
  },
  pluginOptions: {
    "style-resources-loader": {
      preProcessor: "less",
      patterns: [path.resolve(__dirname, "./src/theme/theme.less")]
    }
  },
  configureWebpack: config => {
    config.entry.app = ["babel-polyfill", "whatwg-fetch", "./src/main.js"];
    config.performance = {
      hints: false
    };
    config.plugins.push(
        new ThemeColorReplacer({
          fileName: "css/theme-colors-[contenthash:8].css",
          matchColors: getThemeColors(),
          injectCss: true,
          resolveCss
        })
    );
    // Ignore all locale files of moment.js
    config.plugins.push(new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/));
    // 生产环境下将资源压缩成gzip格式
    if (isProd) {
      // add `CompressionWebpack` plugin to webpack plugins
      config.plugins.push(
          new CompressionWebpackPlugin({
            algorithm: "gzip",
            test: new RegExp("\\.(" + productionGzipExtensions.join("|") + ")$"),
            threshold: 10240,
            minRatio: 0.8
          })
      );
    }
    // if prod, add externals
    if (isProd) {
      config.externals = assetsCDN.externals;
    }
  },
  chainWebpack: config => {
    // 生产环境下关闭css压缩的 colormin 项，因为此项优化与主题色替换功能冲突
    if (isProd) {
      config.plugin("optimize-css").tap(args => {
        args[0].cssnanoOptions.preset[1].colormin = false;
        return args;
      });
    }
    // 生产环境下使用CDN
    if (isProd) {
      config.plugin("html").tap(args => {
        args[0].cdn = assetsCDN;
        return args;
      });
    }
  },
  css: {
    loaderOptions: {
      less: {
        lessOptions: {
          modifyVars: modifyVars(),
          javascriptEnabled: true
        }
      }
    }
  },
  publicPath: process.env.VUE_APP_PUBLIC_PATH,
  outputDir: "dist",
  assetsDir: "static",
  productionSourceMap: false
};
